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Special Forums UNIX and Linux Applications Sendmail delay: 3 mins 11 secs... Every time. Post 303002904 by MadeInGermany on Monday 4th of September 2017 06:19:36 PM
Old 09-04-2017
With the smarthost sendmail does an MX lookup first, like
Code:
nslookup -q=mx outlook.fqdn.uk

If there is no MX it falls back to gethostbyname lookup, like
Code:
getent hosts outlook.fqdn.uk

The second goes to /etc/inet/hosts first (ensure that /etc/hosts and /etc/inet/ipnodes are symlinks to it!)
I have told you to try
Code:
nslookup -q=mx mailhost.fqdn.uk

because mailhost is a more standard name for an MX, and MX (mail exchanger records) is the standard for SMTP mailers (is a list of mail servers with a weight for true load balancing). I wonder why you ignore the MX and try to emulate load balancing with a number of IP addresses.
If you want to try sendmail.mc (which is the correct way according to sendmail.org but might be more hassle than a direct change in sendmail.cf), there is a README somewhere in /usr/lib/mail/
and there is also an article in docs.oracle.com.
This User Gave Thanks to MadeInGermany For This Post:
 

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mailstats(8)						      System Manager's Manual						      mailstats(8)

NAME
mailstats - Displays statistics about mail traffic SYNOPSIS
mailstats [-o] [-C cffile [-f stfile] FLAGS
Do not display the name of the mailer in the output. Use cffile as the name of the sendmail "cf" file instead of /var/adm/sendmail/send- mail.cf. Use stfile as the input statistics file instead of /var/adm/sendmail/sendmail.st. DESCRIPTION
The mailstats command reads the information in the /var/adm/sendmail/sendmail.st file (or in the file specified with the -f flag), formats it, and writes it to standard output. Note also that you can change the location of the sendmail.st file by editing its pathname in the sendmail.cf file. EXAMPLES
The format of the information is shown in the following example, in which the first field (M) contains a number that indicates the position of that mailer in the sendmail.cf file, starting at 0 (zero). For example, the first mailer in the sendmail.cf file corresponds to the number 0 in the mailstats display, the second mailer corresponds to the number 1, and so on. Statistics from Thu Feb 17 11:20:01 2000 M msgsfr bytes_from msgsto bytes_to msgsrej msgsdis Mailer 1 50 77K 1 3K 0 0 local 6 43 59K 58 99K 0 0 smtp ============================================================ T 93 136K 59 102K 0 0 The fields in the report have the following meanings: Indicates the position of the mailer in the sendmail.cf file. Indicates the number of messages received by the local machine from the indicated mailer. Indicates the number of bytes in the messages received by the local machine from the indicated mailer. Indicates the number of messages sent from the local machine using the indicated mailer. Indicates the number of bytes in the messages sent from the local machine using the indicated mailer. Indicates the number of rejected messages. Indicates the number of discarded messages. Indicates the name of the mailer. If sendmail transmits mail directly to a file, such as the dead.letter file or an alias target, the message and byte counts are credited to the prog mailer, as defined in the sendmail.cf file. However, mailstats will still default to var/adm/sendmail/sendmail.st. FILES
Specifies the command path Contains system statistics Contains configuration information for sendmail RELATED INFORMATION
Commands: sendmail(8) delim off mailstats(8)
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